Door lock unit display mount



Oct. 3, 1967 E. SCHLAGE DOOR LOCK UNIT DISPLAY MOUNT 5 Sheets-Sheet 1 Filed Jan. 25, 1967 INVENTOR. fP/VEJT z Jam .44:

Oct. 3, 1967 E. SCHLAGE DOOR LOCK UNIT DISPLAY MOUNT 3 Sheets-Sheet 2 Filed Jan. 25, 1967' I INVENTOR. O fax $.57- A, 501446! W FW E. L. SCHLAGE DOOR LOCK UNIT DISPLAY MOUNT Oct. 3, 1967 3 Sheets-Sheet I5 Filed Jan. 25, 1967 Fla-8 INVENTOR [@vssr 1, 50/446! United States Patent 3,345,026 DOOR LOCK UNIT DISPLAY MOUNT Ernest L. Schlage, Buriingame, Calif., assignor to Schlage Lock Company Substituted for abandoned application Ser. No. 466,797,

June 24, 1965. This application Jan. 25, 1967, Ser. No. 617,757

7 Claims. (Cl. 248-458) ABSTRACT OF THE DISCLOSURE This application is a substitute for an application entitled Door Lock Unit Display Mount filed by Ernest L. Schlage on June 24, 1965, Serial No. 466,797, and now abandoned.

My invention relates to means for displaying door lock units. In demonstrating and selling hardware items, particularly door lock units, it is customary to provide a mount or display device which can be utilized in a hardware store, on the counter for example, to carry at least a part of the door lock unit so that a prospective purchaser can be attracted to it, can examine it and can observe its operation. Usually such mounts are provided only with the portion of the door lock unit which is intened to go on the door panel. This does not demonstrate or show just how the complete lock unit works in practice in a regular, full-size installation nor does it illustrate well the workings of some of the optional features available with the door lock unit.

It is therefore an object of my invention to provide a door lock unit display mount which is effective to carry all parts of the door lock unit, not only the portion which is normally mounted on a door panel, but also the portion which is normally mounted on a door jamb.

Another object of the invention is to provide a door lock unit display which permits the door lock unit parts to move relative to each other, simulating their operation in a regular installation.

Another object of the invention is to provide a door lock unit display mount arranged so that the working of various of the interengaging parts can be easily observed.

Another object of the invention is to provide a door lock unit display mount having movable parts adjustably arranged to take attitudes typical of attitudes found in different actual installations, so that the operation of the door lock unit under various service conditions can be demonstrated and observed. 7

A further object of the invention is to provide a door lock unit display mount which is little, if any, larger than display mounts already furnished and thus does not re" quire excessive storage space nor does it take up extraordinary space when on display.

Another object of the invention is in general to provide an improved door lock unit display mount.

Other objects together with the foregoing are attained in the embodiment of the invention described in the accompanying description and illustrated in the accompanying drawings, in which:

FIGURE 1 is an isometric view of a door lock unit display mount constructed pursuant to the invention;

FIGURE 2 is a plan of my door lock unit display mount showing the parts simulating a door-open condition;

FIGURE 3 is a plan comparable to FIGURE 2 but showing the parts simulating a door-closed position;

FIGURE 4 is a side elevation of the door lock unit display mount of the invention with the parts in a particular adjusted position;

FIGURE 5 is an end elevation of the structure shown in FIGURE 4;

FIGURE 6 is a side elevation comparable to FIGURE 4 but taken from the other side of the mount and showing the parts in another adjusted relationship;

FIGURE 7 is a cross section, the plane of which is indicated by the line 77 of FIGURE 4; and

FIGURE 8 is a cross section, the planes of which are indicated by the lines 8-8 of FIGURE 5.

In the form of the invention chosen for illustration herein, there is provided a stand 6 including a stable base 7 designed to rest upon a counter or other comparable supporting surface. Included in the stand and secured to the base 7 is an upright panel 8. This can be of any suitable material such as wood or plastic and is a substantially solid figure partially bounded by an upright edge face 9 that is or may be slightly rounded or bevelled but generally is referred to as planar. The panel 8 is also partially bounded by a pair of substantially planar, parallel upright sides 11 and 12. The upright panel 8 is intended to simulate the door panel of the customary installation, although the panel 8 is not movable but is fixed and immovable with respect to the base 7.

The stationary panel 8 is provided with a cross bore 16 (FIGURE 2) within which is located the operating mechanism 17 of a representative lock unit. Operating knobs 18 and 19, as examples, extend on opposite sides of the actuating mechanism 17 and are provided with escutcheons or roses 21 and 22 in abutment with the upright panel 8 in the customary fashion. The arrangement is such that the knobs 18 and 19, the lock unit 17 and the roses or escutcheons 21 and 22 can readily be changed or interchanged to afford the desired display.

The upright panel 8 likewise has an edge bore 26 extending inwardly from the edge panel 9 and intersecting the bore 16 for the purpose of receiving a latch bolt unit 27. This can be any of the customarily displayed latch bolt units and is interrelated with the operating mechanism 17 so that the latch bolt is'operable in the usual way. In the instance shown, the latch bolt unit includes not only a latch bolt 28, but likewise includes a deadlatching plunger 29 situated alongside the latch bolt.

In order to augment the display and to provide a simulation of the actual operation of a complete door lock unit, I provide a body 31. This is a block of any suitable material such as wood or plastic but preferably is fabricated of a clear plastic so that an observer can look entirely through the block 31 and observe the lock unit operation through it. The block 31 is generally rectangular and is provided with an upright planar surface 32 designed in one position of the parts to lie exactly opposite the surface 9. The block 31 also has an outer surface 33, side surfaces 43 and 36 and top and bottom surfaces 37 and 38.

Means are provided for mounting a strike mechanism or strike unit on the block 31. The customary strike plate 41 having a strike lip 42 is preferably slightly recessed into the block so that the exposed portion of the plate 41 is flush with the surface 32, the plate being held in position by fasteners 43. To simulate and represent a strike box, it is preferred to provide an opening 44 of rectangular configuration entirely through the body 31 so that not only is it possible to see operation of the parts, but an observer can actually feel the parts in place and can feel their motion. The opening 44 takes the place of the customary metal strike box and performs a similar function. It is preferred to omit the customary metal strike box so as J not to interfere with observation. If desired, a standard strike box can be provided within the opening 44.

Means are particularly provided for interrelating the body 31 and the panel 8 to simulate the motion relationship of a door and a door j-amb. For that reason, the panel 8 is provided with a pair of parallel bores 51 and 52 also parallel to the planar surface 9. These bores conveniently extend entirely through the panel 8. They are located above and below the mechanism of the lock unit. Designed to slide readily within the bores 51 and 52 are similar pins 53 and 54 of considerable length and arranged to serve as supports. Each of the pins is provided with an enlarged collar 56 affording a shoulder 57 designed to lie Within the appropriately contoured chamber 58 of one of a pair of lugs 59 and 60 forming part of the body 31 but extending therefrom a substantial distance toward the lock unit. Each of the lugs has a fiat bounding surface 62 to abut the side surface of the panel 8. The shoulders 57 on the pins abut comparable surfaces 64 within the lugs 59 and 60. The pins terminate in threaded ends 66 on which thumb knobs 67 are screwed. A friction disk 68 is interposed between each knob 67 and the adjacent lug.

With this arrangement, when the knobs 67 are both tightened, the rods or pins 53 and 54 become substantially unitary with the body 31 and then the body can be slid to and fro in the direction of the length of the pins with the surface 32 riding over and substantially parallel to the surface 9. In the customary hinged door, the motion of the door with respect to the door jamb is arcuate on a long radius, where as in the present instance, since the pins 53 and 54 are for convenience made straight, the surface 32 moves substantially parallel to the surface 9. The difference between this motion and the customary arc is negligible, although if it must be taken into account for some particular reason, the pins 53 and 54 and their accommodating supports can be similarly curved.

In the present instance, the user can withdraw the body 31 after one of the knobs 18 or 19 has been turned to retract the latch bolt 28 and the body 31 can be moved out to the extremity of the pins or can be completely detached from the panel 8. By a reverse movement, the body 31 can be moved toward the projecting latch bolt. An observer can watch the latch bolt ride over the strike plate 41 and project into the strike opening 44. It can be particularly noted even through the body 31 that the deadlatching plunger 29 does not extend into the strike opening 44, but rather abuts the face of the strike plate 41. An observer can put his finger into the opening 44 and try to depress the deadlatched latch bolt without avail. This demonstration is very readily and convincingly made with the display mount.

In actual installations, the door panel and the door jamb are not always parallel, nor do they always maintain an ideal distance apart. For that reason, the configuration of the chamber portion 58 of the lugs 59 and 60 is not made circular, but rather is enlarged and transversely elongated particularly as shown in FIGURES 6 and 8. The chambers 58, being elongated and having a slightly loose fit with the adjacent parts of the pins, afford any desired clearance space 71 between the face 9 and the surface 32. It is convenient to provide, as shown in FIGURE 4, a number of thickness gauges 72, 73 and 74 on a chain 76 fastened to a bracket 77 on the panel 8. By first loosening the thumb knobs 67, a demonstrator may introduce any one of the thickness gauges into the clearance space 71 and can then move the body 31 into tight abutment with the clearance gauge. The knobs can then tighten the screws 67, and after the thickness gauge has been removed, the operation of the lock unit under the particular clearance conditions chosen can be shown. By the same operation, the demonstrator can provide excessive clearance and show what lock action occurs when there is too much space in the clearance zone such as occurs when door frames or door jambs warp.

It is also possible, as shown particularly in FIGURE 6, to use different thickness gauges at the top and at the bottom of the display mount so that the surface 32 of the body 31 is not accurately parallel with the surface 9. This situation sometimes occurs in practice and can in this Way be demonstrated. Under this extreme condition, the surfaces 9 and 32 are not mathematically parallel, but are nearly so and are called substantially parallel herein.

What is claimed is:

1. A door lock unit display mount comprising a stand including an upright panel having a planar edge face. means formed in said panel and opening through said edge face for receiving a bolt unit, a body having a planar surface, means for mounting said body on said panel for movement of said planar surface across said planar edge faces, means formed in said panel and defining openings said planar surface for receiving a strike unit engageable with said bolt unit.

2. A door lock unit display mount comprising a stand having a base and an upright panel, said panel having an upright planar edge face and adjoining upright side faces, means formed in said panel and defining openings through said edge face and said side faces for receiving the bolt and actuator portions of a lock unit, a body having an upright planar surface, means for mounting said body on said panel for movement of said body relative to said panel with said upright surface moving across said edge face, and means formed in said body and defining an opening therein through said surface for receiving the strike portion of a lock unit adapted to interengage with said bolt portion.

3. A door lock unit display mount comprising a stand having an upright panel with an upright planar edge face, a body having an upright planar surface, means for mounting said body on said panel for movement of said body relative to said panel with said surface moving across said edge face, means on said panel and said body for receiving a lock unit in position to have the bolt portion and the strike portion thereof interengage during such movement, and means for limiting said movement in one direction.

4. A door lock unit display mount comprising a stand having an upright panel with an upright planar edge face and having a pair of bores therethrough parallel to each other and to said face, a body having an upright planar surface, a pair of pins slidable in said bores, means on said body engaging said pins and holding said face and said surface approximately parallel, and means on said panel and said body for receiving a lock unit in position to have the bolt portion and the strike portion thereof interengage.

5. A door lock unit display mount comprising a stand having an upright panel with an upright planar edge face and having a horizontal bore therein parallel to said edge face, a pin slidable in said bore, a body having an upright planar surface, a lug on said body engaged with said pin and positioning said surface substantially parallel to said face for movement thereover, and means on said panel and said body for receiving a lock unit in position to have the bolt portion and the strike portion thereof interengage during said movement.

6. A door lock unit display mount comprising a stand having an upright panel with an upright planar edge face and having a horizontal bore therein parallel to said edge face, a pin slidable in said bore, a shoulder on said pin, a body having an upright planar surface, a lug on said body having an aperture therein receiving said pin, means for clamping said lug against said shoulder with said surface in position to move over said face as said pin slides in said bore, and means on said panel and said body for receiving a lock unit in position to have the bolt portion and the strike portion interengage as said surface moves over said face.

7. A door lock unit display mount comprising a stand having an upright panel with a planar edge face and having a pair of horizontal bores therein parallel to each other and to said edge face, a pair of pins slidable in said bores, a body having an upright planar surface and having a pair of lugs each with an aperture therethrongh receiving :a respective one of said pair of pins, means for clamping said lugs and said pins together for unitary movement of said body relative to said panel with said surface in position to move over said face, and means on said panel and said body for receiving a lock unit in position to have the bolt portion and the strike portion interengage during said movement.

References Cited UNITED STATES PATENTS Gasson 248158 Lobban 21l13 Morton et al. 211-1 Cohen et a1. 21l13 1O ROY D. FRAZIER, Primary Examiner.

W. D. LOULAN, Assistant Examiner. 

1. A DOOR LOCK UNIT DISPLAY MOUNT COMPRISING A STAND INCLUDING AN UPRIGHT PANEL HAVING A PLANAR EDGE FACE, MEANS FORMED IN SAID PANEL AND OPENING THROUGH SAID EDGE FACE FOR RECEIVING A BOLT UNIT, A BODY HAVING A PLANAR SURFACE, MEANS FOR MOUNTING SAID BODY ON SAID PANEL FOR MOVEMENT OF SAID PLANAR SURFACE ACROSS SAID PLANAR EDGE FACES MEANS FORMED IN SAID PANEL AND DEFINING OPENINGS SAID PLANAR SURFACE FOR RECEIVING A STRIKE UNIT ENGAGEABLE WITH SAID BOLT UNIT. 